October 2013
Intermediate to advanced
306 pages
12h 17m
English
Content preview from Estimating for Heating and Ventilating, 3rd Edition
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ESTIMATING LABOUR REQUIRED
FOR
ERECTION
165
Offload at site, mineral wool pipe wrapping strip and move to new house or bungalow
ready
for
fixing. Unwrap
and
apply
to (A)
pipes
in
floor spaces,
(B)
pipes
in
roof
space,
and (C)
pipes
in
rooms,
e.g.
vertical risers which
are to be
cased-in.
Pipe bore
Copper B.S.2871
and steel B.S.4127
Hours, fitter and mate
mm (o.d.) in (i.d.)
A
Β
C
15 and 22
28
35
iand
ί
1
017
018
0-21
015
016
018
012
013
015
Microbore tube
outside diameter
mm
6 and
8
013
011
010
10
and
12
015 013 011
Variation
For work
in
occupied house, add
20
per cent.
Thermal Insulation to Pipework. Microbore, Small Bore, and
Domestic
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.